Generation, Screening, and Optimization of Powertrain Configurations for Power-Split Hybrid Electric Vehicle: A Comprehensive Overview

Power-split hybrid electric vehicle (PSHEV) has outstanding energy-saving potential, which is one of the effective solutions to alleviate energy shortage and environmental pollution. The powertrain configuration of PSHEV is the basis of energy management, which determines the operating mode, control algorithm selection, optimization potential, and directly affects the vehicle’s comprehensive performance. Analyzing and summarizing the existing research results will be beneficial to promote the further development of the design theory of powertrain. In this article, the generation, screening, and optimization techniques of PSHEV powertrain configuration are systematically compared and analyzed. First, the classification and modeling of PSHEV are analyzed and summarized. Second, the generation method of the PSHEV powertrain is analyzed in detail. Thus, three types of formation methods for the design space of PSHEV powertrain configuration are summarized. Then, the feasible solution is explored via configurations screening, which further reduces the difficulty of industrial application. Meanwhile, the feasible design space is further optimized to obtain the competitive solution, so as to meet the design requirements. Finally, the technology challenges of PSHEV powertrain configuration research are discussed, which pointed out the application direction of configuration design method in electric vehicles and fuel cell vehicles.